Chemistry - MOST IMPORTANT DSSSB DASS Previous Year Questions
Practice real questions from previous year exams of DSSSB DASS.
📘 Structure of Atom📚 Electron
Q1
Electron was Discovered by:
🎯 DSSSB DASS (Grade-II), 24-07-2019 (Shift-I)
📘 Solution📚 Colloid and its types
Q2
Fog is a:
🎯 DSSSB DASS (Grade-II), 23-07-2019 (Shift-1)
📘 Chemistry in Everyday Life📚 Food Preservatives
Q3
Sodium benzoate can be used as:
🎯 DSSSB DASS (Grade-II), 18-07-2019 (Shift-II)
📘 Discoveries📚 Misc
Q4
Who among the following is credited to co-discover the elements with atomic number 95-106 in of the periodic table?
🎯 DSSSB DASS (Grade-II), 23-07-2019 (Shift-II)
📘 Acids, Bases and Salts📚 Name of Acid present in compounds
Q5
The irritation caused by the sting of an ant is due to the release of......... in body.
🎯 DSSSB DASS (Grade-II), 19-07-2019 (Shift-II)
📘 Polymer📚 Types of polymers on basis of Structure- Natural, Semi-Synthetic, Synthetic
Q6
Which of the following nutrients is made of chains of amino acids?
🎯 DSSSB DASS (Grade-II), 19-07-2019 (Shift-II)
📘 Acids, Bases and Salts📚 Neutralization Reaction
Q7
The products of the process of neutralisation, i.e., reaction between an acid and a base, are:
🎯 DSSSB DASS (Grade-II), 19-07-2019 (Shift-III)
📘 Acids, Bases and Salts📚 Misc
Q8
Which of the following is NOT and acid?
🎯 DSSSB DASS (Grade-II), 19-07-2019 (Shift-III)
📘 Important Chemical Compounds📚 Slaked lime
Q9
Calcium Hydroxide is present in:
🎯 DSSSB DASS (Grade-II), 24-07-2019 (Shift-III)
📘 Important Chemical Compounds📚 Plaster of Paris
Q10
Calcium sulphate hemihydrate is the chemical name of:
🎯 DSSSB DASS (Grade-II), 19-07-2019 (Shift-II)
📘 Chemistry in Everyday Life📚 Pesticides and Insecticides
Q11
Which of the following is used as a moth ball?
🎯 DSSSB DASS (Grade-II), 18-07-2019 (Shift-II)
📘 Organic Chemistry📚 Hydrocarbons
Q12
The number 'CETANE' is used to denote the quality of which of the following fuels?
🎯 DSSSB DASS (Grade-II), 25-07-2019 (Shift-I)
📘 Polymer📚 Misc
Q13
Which one of the following is not a short form of synthetic non-biodegradable polymer?
🎯 DSSSB DASS (Grade-II), 25-07-2019 (Shift-1)
📘 Chemistry in Everyday Life📚 Dyes and Pigments
Q14
Alizarin is a type of
🎯 DSSSB DASS (Grade-II), 25-07-2019 (Shift-I)
📘 Classification of Matter on the basis of Chemical Properties- I📚 Pure Substance- Element
Q15
Who was the first to give an experimentally useful definition of an element?
🎯 DSSSB DASS (Grade-II), 24-07-2019 (Shift-1)
📘 Radioactivity📚 Applications of Radioactivity
Q16
Kalpakkam mini reactor operates for
🎯 DSSSB DASS (Grade-II), 23-07-2019 (Shift-I)
📘 Important Chemical Compounds📚 Bleaching Powder
Q17
What is the common name of calcium oxychloride?
🎯 DSSSB DASS (Grade-II), 18-07-2019 (Shift-III)